Rotary gas-engine.



M. L. HARRIS. ROTARY GAS ENGINE. APPLIoATIoN PILBD.AUG.15, 1908.

Patented J Illy 5, 1910.

2 SHBETB-SHEETL M. LHARRIS. Y, f ROTARY GAS ENGINE. APPLIUATIUN FILED AUG. 15, 1908.

Patented Ju1y5, 1910.

MALCOLM L. HARRIS, F GHICVAGO, ILLINOIS.

norAnY css-ENGINE.

` Specification of Letters ratent.-

ratenteuuuiy 5, 1910.

Application filed August 15, i908.A Serial lo. 448,691.

To all whom fit may concern:

fBe it known that I, MALCOLM L. HARRIS,

va citizen of the United States, residing at Chicago, in the county of Cook and State of' Illinois, have invented anew and useul Improvement in Rotary .Gras-Engines, of which the followinoP is a specification. i

o 4 My invention relates tocertain new and useful improvements in rotary gas engines,

nal-bearings a at i lfrom `which it will be seen that the drum `ally to eachother.

and is'fully described and explained in the specification and shown in the accompanying drawings, in which:

Figure .1' is n line 1 of Fig. .-Bthrough my improved en.- gine the drum being shown one-half in elevation .and vone-half in -section; Fig. 2 is a transverse 'section-with the .drum n'eleva.- tion; Fig-3 is a transverse section inthe line 3 .ot Fig. 1,1showing `the 'blades andy drum in position; and Fig. 4 is.' a Vsimilar section showing the-pants infa 'different position.

. Referring to he drawings, A is as'ing, the wall of which when viewed in crosssectionl 'has an irregular, generally. oval, curve. The casing is provided with jourits ends to receive journals, and :the curve ofthe wallis struck on the arc of a .circle'with the centerof the journals as its center from the point a1 to the point a2 vto.the point a3 the curve maybe fvaried as desired, although in the preferred form of construction this portion of the wall -is formed ton .an arc of the circle struck'irom the poi-nt a* .above .the center vof the journal- .bearings a. From the point a,B to the point a1, the curve is irregular -but -of a general vnature so as to form an easy connection between the en ds of the. two curves already formed. A 7 Tecasing A is closed at its ends by heads A1, A2, in whichsaid journalbearings are formed, as Shown, and having circular recesses Aste receive the ends of a cylindrical drum B, which maybe solid and provided with Ijournals B1 passing through journal-be ings a. The cross-section of the drum B is best illustrated in Figs. 8 and although Vclosed atits ends, is chambered medially to form two chambersy diametric- Swinging abutments or vanes C, C1 are pivoted to the drum on centers c adjacent to the periphery of the drum, and the abutments are of the following ,form Each has ment' hasa third curved surface c3 may be varied considerably, but is prefera longitudinal section in the.

of said wall.' From the point a?.

vcupied by- 'mediatelyw after passing this position, the

fand the burned gases a curved face c1 of the saine curvature as 'the periphery of the drum.; each has a cross-surfacec72 intersecting .the surface c1, the surfaces 02 being struck on arcsof circles about the pivots of the, abutments as centers. Each abutwhich' ably struckon acurve, which when Kthe I abutment is -swung into its chamber in the drum will be substantially parallel to the concentric inner and actly,so as to. -permit the swinging motion of the abutments illustrated in t c drawing;

outer. faces or the drum. Thecham'bers 1in the drum are-made. to receive 4the abutments and fit them exand each chamber has at one endl an intakeport :(12, which during a portion `of the rotation of. lie drum .registerswith a slot A" 4through the corresponding end of thecasing or head A2. During another portion of the revolution o f the drum the port 1C registers with a grooved portor channel A cut in the wall of the Casin tending therethrough, as Fig. '-1.

The oper ily apparent from the foregoingv description. lStarting with the parts in the position shown in Fig. 4, let it be assumed that there is a illustrated in charge behind the projecting end of the driving the same in the direcabutment C]L tion of. rotation-indicated by the arrow in said section. The pressure behind the'said I 96 H abutment and the centrifugal'force will, oi

course, hold the same vconstantly in contact "but not ex- Y g, v`

tion of the' device will -be readwith thewall of the casing and the as willV gradually expand Jforcing the drum lorward 1 until the abutment C1 takes the position vocthe abutment C in Fig. 3.. Im-

pressing abutment will be forced inward com- 'i theair or gas thus sucked in; the/ the chamber within or with a source of explosive gas,

being in registration gas willreach the space behind the abute .evident that the particularly in case the'fuel be ,within the engine.

-the usual wa ,the slot A3 'air be brought in struction possible in Athe detalls of construction compression will continue until the port C2 l comes into` registration with the groove A4 whereupon fthe gas will pass through said groove around the end of the drum toa position just behind the opposite abutment. The,4 length of the groove is so adjusted that the ment, just as it begins to' move out, that is just after it passes the pomt a? 1n the caslng-| wall. Immediately after the' gas reaches the point behind the abutment it will be fired in It will be obvious from the foregoing description that it is 4a-'matter of indifference whether atmospheric air be drawn in through and supplied with its fuelscomponent after it enters, or whether carbureted through the said slot after the ordinary manner. In the form of conherein illustrated specifically, the lirst alternative is shown and held out in any ordinary manner, but when .and

that considerable variation is of my improved device2 without departing from the spirit of my invention, and I do not intend therefore, to limit myself tothe specic orm herein shown and described.

What I claim as new, by Letters Patent, is-

he-combination with a casing and a, rotatable drum eccentricall'y 'ournaledtherein, and provided with cham a nements adapted to swing into and out of and desire to secure t-hechambers to follow the wall of the casf lng during rotation of the d p ort in each chamber, an inlet opening and a transfer port in the g and then with port in the rotation ofthe drum.

2. The combination with a casing, and a drum eccentrically 'ournaled therein and provided with cham ers, of pivoted abutments adapted to swing into and out of said chambers to -follow the wall he casing, ports inthe chambers, a slot in the casing adapted to register withsaid. ports Iduring ers inthe drum, pivoted abutments adapted to swinginto and out of said' chambers adapted to register with the inspiration of char es duringl movement of the autments and a p e casing adapt to register with the p in the chambers or the transference 'of compressed charges from the chambers to the space within the 'casinor outside the drum, means for intro ucin fuel to the charges after leaving the c ambers.

MALCOLM L. HARRIS.l In presence of'- HEIsLA'R, RiurMoNlz.4 

